Documents disponibles écrits par cet auteur

Controllable synthesis of hexagonal, bullet - like ZnO microstructures and nanorod arrays and their photocatalytic property / Limin Song in Industrial & engineering chemistry research, Vol. 51 N° 13 (Avril 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 13 (Avril 2012) . - pp. 4922–4926 Titre : Controllable synthesis of hexagonal, bullet - like ZnO microstructures and nanorod arrays and their photocatalytic property Type de document : texte imprimé Auteurs : Limin Song, Auteur ; Shujuan Zhang, Auteur ; Xiaoqing Wu, Auteur Année de publication : 2012 Article en page(s) : pp. 4922–4926 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Photocatalytic  Property  Microstructure Résumé : Hexagonal, bullet-like ZnO microstructures and nanorod arrays have been prepared successfully by a simple hydrothermal method without surfactants. The structure and composition of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectrum (EDS), infrared spectrum (IR), and UV–vis diffusive reflectance spectrum (UV–vis). The as-synthesized bullet-like ZnO has hexagonal microstructures with an average diameter of about 10 μm and a length of 30 μm. The obtained ZnO nanorod arrays are highly oriented. Their average diameter is around 50–100 nm, and their length is about 1 μm. In the present work, the effect of concentration, heating temperature, and time on the morphology of ZnO structures was studied experimentally, and their formation was discussed in detail. The photocatalytic degradation of methylene blue (MB) was also investigated. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202253a [article] Controllable synthesis of hexagonal, bullet - like ZnO microstructures and nanorod arrays and their photocatalytic property [texte imprimé] / Limin Song, Auteur ; Shujuan Zhang, Auteur ; Xiaoqing Wu, Auteur . - 2012 . - pp. 4922–4926. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 13 (Avril 2012) . - pp. 4922–4926 Mots-clés : Photocatalytic  Property  Microstructure Résumé : Hexagonal, bullet-like ZnO microstructures and nanorod arrays have been prepared successfully by a simple hydrothermal method without surfactants. The structure and composition of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectrum (EDS), infrared spectrum (IR), and UV–vis diffusive reflectance spectrum (UV–vis). The as-synthesized bullet-like ZnO has hexagonal microstructures with an average diameter of about 10 μm and a length of 30 μm. The obtained ZnO nanorod arrays are highly oriented. Their average diameter is around 50–100 nm, and their length is about 1 μm. In the present work, the effect of concentration, heating temperature, and time on the morphology of ZnO structures was studied experimentally, and their formation was discussed in detail. The photocatalytic degradation of methylene blue (MB) was also investigated. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202253a

Graphitic C3N4 photocatalyst for esterification of benzaldehyde and alcohol under visible light radiation / Limin Song in Industrial & engineering chemistry research, Vol. 51 N° 28 (Juillet 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 28 (Juillet 2012) . - pp. 9510-9514 Titre : Graphitic C3N4 photocatalyst for esterification of benzaldehyde and alcohol under visible light radiation Type de document : texte imprimé Auteurs : Limin Song, Auteur ; Shujuan Zhang, Auteur ; Xiaoqing Wu, Auteur Année de publication : 2012 Article en page(s) : pp. 9510-9514 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Visible  radiation  Esterification  Photocatalysis  Catalyst Résumé : The reaction of alcohols and carboxylic acids catalyzed by acids is the traditional method used to prepare esters in the chemical industry. In this study, we report the synthesis of active graphitic carbon nitride (g-C3N4) that may be used in the one-step reaction between benzaldehyde and alcohol to promote the selective formation of esters under visible light irradiation. Compared with the reaction carried out without illumination, g-C3N4 showed obvious improvements in ester formation. The presence of tin dioxide can also contribute to the formation of esters under visible light irradiation. The use of g-C3N4 for the esterification of various alcohols was explored, and the catalyst showed promising results. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26163287 [article] Graphitic C3N4 photocatalyst for esterification of benzaldehyde and alcohol under visible light radiation [texte imprimé] / Limin Song, Auteur ; Shujuan Zhang, Auteur ; Xiaoqing Wu, Auteur . - 2012 . - pp. 9510-9514. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 28 (Juillet 2012) . - pp. 9510-9514 Mots-clés : Visible  radiation  Esterification  Photocatalysis  Catalyst Résumé : The reaction of alcohols and carboxylic acids catalyzed by acids is the traditional method used to prepare esters in the chemical industry. In this study, we report the synthesis of active graphitic carbon nitride (g-C3N4) that may be used in the one-step reaction between benzaldehyde and alcohol to promote the selective formation of esters under visible light irradiation. Compared with the reaction carried out without illumination, g-C3N4 showed obvious improvements in ester formation. The presence of tin dioxide can also contribute to the formation of esters under visible light irradiation. The use of g-C3N4 for the esterification of various alcohols was explored, and the catalyst showed promising results. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26163287